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Selectivity with fuses

How to make selectivity with fuses

Here you can find the main rules to design selectivity between fuses or fuses and breakers. Three combinations are possible:

  • Upstream fuse and downstream fuse
    How to design selectivity in the overload and in the short-circuit zone
  • Upstream circuit-breaker and downstream fuse
    How to design selectivity in the overload and in the short-circuit zone
  • Upstream fuse and downstream circuit-breaker
  • How to design selectivity in the overload and in the short-circuit zone

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